The city urged residents not to release their unwanted pet fish. They caught 10 goldfish last week and another ... “Often, they don’t eat aquatic plants, but the plants simply cannot establish ...

A team from Ben-Gurion University has successfully taught goldfish ... The fish were successfully trained to reach a pink target at the opposite end of a room in return for a fish food reward ...

Each time one of them reached a target set by the researchers, it was rewarded with food. And some goldfish are better drivers than others. "There were very good fish that were doing excellent and ...

Goldfish are considered invasive species that uproot underwater plants and compete with native fish for food and shelter. Speedy reproducers, the fish live up to 25 years and are a real pain to ...